<?php
	echo "hello word guagua!haha";
	echo "当前时间：".date("Y-m-d H:i:s");
	/*
	$link = mysqli_connect('localhost','root','123456');
	echo "<br/>";
	if (!$link) {
		printf("Can't connect to MySQL Server. Errorcode: %s ", mysqli_connect_error());
		exit;
	}else{
    echo '数据库连接上了！';
	}
	*/
	echo "<br/>";
	$s1 = "abc";
	$abc = 10;
	echo $$s1;
?>